Extension lamp



E. G. APPLETON T A1.

July lf7, 1928.

EXTENS I 0N LAMP Filed Nov. 19, 1923l 2 Sheets-Sheet 1 E. G. APPLETON ET AL July 17, 192s.

EXTENS I ON LAMP Filed Nov. 19,- 1925 2 sheets-sheet 2 ,f w; @j ,w y W IFI Z @MJU w @um m Patented July 17, 1928.

UNITED STATES PATENT OFFICE,

i :ERNST o. APPLETON, ALBERT C. FISCHER, AND RAYMOND MOONEY, or CHICAGO, ILLI- NoIs, AssIGNOns To ROACH-APPLETON MANUFACTURING COMPANY, or CHICAGO,

ILLINOIS, A CORPORATION OE ILLINOIS.

EXTENSION LAMP.

`Application ined Nbvember is, 192s. serial No. 675,468.

This invention relates `to a new and improved electric extension lamp and more particularly to a housing and reel control tor lamps of this character.

Extension lightsof this type comprise a housing adapted to be associated with a vehicle instrument board or similar support, a reel for holding the conducting cable and means for retaining the lamp itself .in its normal position in the housing. It is desirable to provide means 'for holding the lamp firmly but yieldingly in the housing and to provide means whereby the reel may readily pay out and retract the coinluctor wiring.

" It is `an object ofthe present invention to provide a new and improved extensionlanip housing assembly having efficient lamp holding an reel control means;

It is a further object to provide a housing of this character in which the housing parts are provided withinteritting parts adapted to facilitate assembly. l i

It is also an object to provide a housing havingmeans adapted to firmly but yieldingly retain a lamp member in position therein. l

It is an additional object to provide a ratchet reel control having means for placing the ratchet into or out of operation.

Other and further objects will appear as the description proceeds. A

We have illustrated a preierred embodiment of our invention in the accompanying drawings, in whichm Figure 1 is a face view of theilainp housing assembly;

Figure 2 is a view of Figure 1 as seen from the left;

Figure l3 is a View of from the right;

` Figure 4 is a View of Figure 1 as seen from above;

Figure 5 is a View on an enlargedv scale similar to Figure 2 but With the side of the casing removed; y

Figure 6 is al section taken on line 6-6 ot Figure 5; l s i Figure 7 is a View similar to Figure `3 but with the inner sideof the case and the reel removed; Y

Figure 1 as seen 14.- passing Figure 8 is a fragmentary section taken Online 8-8 oi' Figure 7 5 and Figure 9 is a fragmentary section taken on line 9-9 of Figure 7.

The housing comprises thev front ber 11 which removably secured to the side members 12 and 13 by means of screws through perforations in `the flanges 12 and 13 formed on the forward edges ot the members and into the member to which the housing is secured as shown in Figures 2, 3 and et. This front member 1'1 provided with the iiitui'ned edges 11 which enclose the edges of the flanges 12 and 13 otA the side members and with `the iianges 11:L which enclose the :forward edge-s` oi' the housing body portion-15.

The body portion 15A of the housing is curved to forni the top, bottom and rear ot the housing'. llhe side 12 is provided with `slots 16 through which are passed ears 17 meinformed integral With the member 15. Similar ears 18 are passed the side member 13.`A e

`The axle 20, as best shown in Figure V6, extends through openings in the sideinenithrough slots 19 in bers 12 and 13. The axle is provided upon its end extending through side 13 with` the squared portion 21 over Which is fitted an adjusting key 22. This key is held in place upon the axle by means of the screiv 23 which is threaded into the axle.k The side meinbe-r 13 of the housing is provided-With the struck-up arms 2.4i, either oi which is adapted to engage the key The opposite end of the axle 20 has secured thereto the screw 25 Which serves to prevent axial displacement of the axle relative to the side 12 and also to retain in place the end of the conducting Wire 77.V i

The reel 2G is fitted upon the axle 2() in such manner as t-o rotate 'freely' thereon.` The end plate 27 of the ieel is provided With `the overlianging rim 28 which encloses a spiral spring 29. The inner end of this spring is secured to the'axle 20 by the pin` through" the plate 4S and side The end plate 33 is provided with a short arcuate recess` 3l in which is fitted the insulated element 35. A similar insulated elcment 3'6 is'locat'ed upon the opposite side ol the member 33 and the eyelets isecure the two pieces ot' insulation in place. These eyelets are out ot contact with the metallic portion 33 of the reel, and serve to secure against the insulated member 3G the inner end of a contact spring 38. The outer end of this contact spring 38 is adapted tov bear against a contact ring 39 as shown in Figure 7.

rlhe two layers olf insulation 40 and Lll. are secured tothe 'side 12"by` nic-ans of the tongues l2 which are struck up Yfrom the sido i2 and pass 'through the insulation and are crimped upon it as shownI in Figure t). These pieces of insulation 40 and Ail extend over beyond an opening in theside 13 ot' the casing through which opening is passed the screiwii. This screw engages an extension 44 of the contactring 3) and serves to aid in maintaining that ring in place. The ring also maintainedin place by fingers i5 which are bent down from the ring over the odge ot' the piece of insulation Ll1 and against the face ot the piece of insulation 40.

The screw 43 extendsoutwardly through the side 12 of the casing as shown in Figure 2 and carries the nut 46 which retains in place thezfuse clip 47 supported upon the insulating plate '48. The co-operating fuse clip 49 is'secured in place Aby means ol bolt 50 and nut 51, the bolt 50 also passing v n y l2." The clips 47 and'49 carry the fuse 52. The screw 50 its surrounded, where it passes through the side 1Q. of the casing, by the insulating collar 53"so that it is out of electrical contact with the casing. i

The reel 26 carries the doublercondncting wire 54 which isconnected to the lamp body 55, which body 55 is removably litted within thesocket member 56 carried in an opening in the tace plate 1l. The retaining member 57 is screwed tothe collar 5G and` is provided with a spring linfer 57 adapted to engage a groove 58 in tlie lamp andf yieldingly retain the lamp in positionin the socket member.

One conductor element has its end away from the lamp passed through one of the eyelets 37 and soldered to the contact spring 38 at 59, as shown in Figure 5. Thel similar end ofthe other conductor is passed through the opening 60 in the reel and is soldered to the face of the reel member 33 at G1 as also shown in Eigure. I As best shown in Figure 5, the reel end plate 33 has its outer edge provided with seirations 62 which form ratchet teeth. The dog 63`is` pivo'ted upon npin 64 passing througli side 13 of thecasng. This dog has an inturned end 65 adapted to `engage the kshown in Figure 5.

radial edges ci? the sei-rations (r2. The spring (56 is riveted to the casing body meniber 15 at (S7 and has :1 free end engaging the portions of the dog to urge it into engagement in the ratchet.

The slide (3S is providral with the elongated slot (i9 through which paesesthe pivot, pin

.64. This slide is located between thewall 'li and the dog (S3. The slide has an up turned portion 70, one edge ol which is adapted to co-operate with the cam surfaces 7l and 72 on the dog. The operating plunger 7 3 is secured to the portion 7l) and extends through the sleeve 7-:l which is secured in place in the face plate ll by means ol nut 75.

The electrical circuit of tlu` lmnp passes from a lead wire 7G shown in l `igure 2 which is connected to the bolt 50 under the nut 51. It passes then through' the fuse 52 to the bolt i3 which is insulated from the casing 1Q. As

shown in Figure S, the inner end of this bolt 43 is in contact withthey poi-tional of the contact ring 39 which ring is therefore electrically connected to the Wire 76;

The Contact spring 3S engages this ring 39 and passes the current to*theconducter which is soldered to the spring 3S at 59 as n ,A The current passes through this conductor and through the bulb which is not shown and back through the second conductor to the reel to which this conductor is soldered atl. The reel is electrically in contact with the axle with the casing. The return wire 77 ot the circuitis connected undo the screw 25 fitted in one end of the axle. t a: one-wire system is used, the casing may be grounded in any convenient manner instead of connecting the wire 77 as shown. f

When it is 'desired to use the light 'in its extended position, the member carrying the bulb is withdrawn from the socket G. the conductor 54 paying out from the reel. This causes a rotation ofthe reel and comliression of the spring 29. Retraction ot the conducting wire by reverse rotation ol the reel is prevented by the engagement oi the dog (33 with the serrations 62 on the reel. When it is desired to retract the wire the plunger 73 is thrust inwardly and the portion 70 engages the cam surface 7l on the dog. swng ing it ont ot engagement with the rcel. The portion 70 then catches on the cam surface 72 and maintains the dog out of engagement with the reel until the plunger again drawn outwardly.

The socket member 56 receives the lamp member and normally maintains it in fixed position in the housing. The spring linger 57 retains it yieldingly in place and yet permits its ready and rapid removal.

The inturne'd edges ofthe face plate and theirrelation to the edges of' the `housing body are of particular utility in causing the 2O and thusv housing body to be easil;7 located with regard to the face plate to bring the screw receiving holes of the two elements in registration so that the screws may be inserted to secure the parts together and in place upon the sup` port.

We have shown one particular embodimentl of our invention by Way of illustration but we contemplate such changes and modifications as come within the scope of the appended claims.

We claim:

1. In a housing for an light, a main housing portion having an open side and perforated flanges located adjacent said open side, a removable faceplate adapted to close said open side having perforations adapted to register with the flange perforations and having inturned edges on all sides adapted to enclose the anges and to maintain the parts in registering relation.

2. An electric extension light comprising a housing, an axle supported therein, a reel fitted on said axle, a-spring connecting the reel and axle and tending to rotate the reel in one direction, a conductor Wound on the reel and tending when Withdrawn therefrom to rotate the reel in the opposite direction, a

electric extension series of ratchet teeth upon the reel, a dog adapted to engage said teeth, a cam surface formed on said dog, and a plunger having a portion adapted to engage said surface to move the dog out of engagement with the ratchet teeth.

3. An electric extension light comprising a housing, an axle supported therein, a reel comprising end plates and a central portion fitted on said axle, a spring connecting the reel and axle and tending to rotate the reel in one direction, a conductor Wound on the reel and tending when Withdrawn therefrom to rotate the reel in the opposite direction, a series of ratchet teeth formed in the periphery of one of the reel en'd plates, a sprlng pressed dog adapted to engage said ratchet teeth, cam surfaces on said dog, and a plunger having a portion adapted to enga-ge one of said cam surfaces to move the ydog against the spring out of the path of the ratchet teeth and to engage another of said surfaces to maintain the dog in the out position.

Signed at Chicago, Illinois, this 16th day of Nov., 1923.

ERNST G. APPLETON. RAYMOND MOONEY. `ALBERT C. FISCHER. 

